Highly Efficient I2 Sorption, CO2 Capture, and Catalytic Conversion by Introducing Nitrogen Donor Sites in a Microporous Co(II)-Based Metal-Organic Framework

Recently, the development of porous absorbents for efficient CO2 and I-2 capture has attracted considerable attention because of severe global climate change and environmental issues with the nuclear energy. Hence, a unique porous metal-organic framework (MOF), {[Co(L)]center dot DMF center dot 2H(2)O}(n) (1, DMF = N,N-dimethylformamide) with uncoordinated N atoms was rationally constructed via using a heterofunctional 4,6-bis(4'-carboxyphenyl)pyrimidine (H2L) linker. Interestingly, 1 exhibits exceptional properties for I-2 sorption, CO2 capture, and catalytic conversion. Particularly, I-2 can be efficiently removed in both vapor and solution forms, and the adsorption amount can reach 676.25 and 345.28 mg g(-1), respectively. Furthermore, complex 1 displays high adsorption capacity for CO2 (53.78 cm(3) g(-1), 273 K). Consequently, 1 is expected to be a promising and practical material for environmental purification due to its excellent adsorption properties.